Combinations of agricultural implements with tractors

Claim 1

A TRACTOR IN COMBINATION WITH A PAIR OF AGRICULTURAL IMPLEMENTS, ONE OF SAID IMPLEMENTS CENTRALLY CONNECTED TO AN END OF SAID TRACTOR, AND THE OTHER OF SAID IMPLEMENTS EXTENDING TRANSVERELY TO ONE SIDE OF SAID TRACTOR, SAID SECOND MENTIONED IMPLEMENT ALSO CONNECTED TO THE SAME END OF SAID TRACTOR THAT SAID FIRST MENTIONED IMPLEMENT IS CONNECTED, A POWER TAKE-OFF ON SAID TRACTOR LOCATED AT THE SAME END AS SAID IMPLEMENTS, TRANSMISSION MEANS CONNECTING SAID POWER TAKE-OFF AND SAID FIRST MENTIONED IMPLEMENT, FURTHER TRANSMISSION MEANS INTER-CONNECTING SAID FIRST MENTIONED TRANSMISSION MEANS TO SAID SECOND MEMTIONED IMPLEMENT, SAID POWER TAKE-OFF AND SAID TRANSMISSION MEANS BEING LOCATED APPROXIMATELY CENTRALLY OF SAID TRACTOR, A LIFTING DEVICE IN SAID END OF SAID TRACTOR, AND LINKAGE MEANS LINKING SAID SECOND MENTIONED IMPLEMENT TO SAID LIFTING DEVICE WHEREBY WHEN SAID LIFTING DEVICE IS RAISED SAID SECOND MENTIONED IMPLEMENT IS PIVOTED UPWARDLY TO A SUBSTANTIALLY VERTICAL POSITION, A STOP MEMBER ON SAID TRACTOR FOR LIMITING THE MOVEMENT OF SAID SECOND IMPLEMENT, SAID STOP MEMBER BEING PROVIDED WITH A HOLE, A SECOND STOP, AND A COUPLING ROD, SAID LEVER BEING CONNECTED TO SAID COUPLING ROD WHICH PASSES THROUGH SAID HOLE ASSOCIATED WITH SAID STOP, SAID SECOND STOP BEING PROVIDED ON SAID COUPLING ROD WHEREBY DURING THE LIFTING OPERATION OF SAID LIFTING DEVICE THE UPWARD MOVEMENT OF SAID COUPLING ROD IS PREVENTED AS SOON AS SAID SECOND STOP COMES INTO CONTACT WITH SAID FIRST STOP, THE LATTER BEING RIGID RELATIVE TO SAID TRACTOR, A DRIVER''S SEAT ON SAID TRACTOR, SAID SEAT BEING LOCATED ON THE SAME END OF SAID TRACTOR AS SAID LIFTING DEVICE RELATIVE TO THE ENGINE OF THE TRACTOR.